CVE-2026-42592
- Source
- https://cve.org/CVERecord?id=CVE-2026-42592
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42592.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-42592
- Aliases
- Published
- 2026-05-14T15:30:34.316Z
- Modified
- 2026-07-08T08:13:28.838850217Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
- Summary
- Gotenberg: DNS rebinding bypasses SSRF validation on Chromium URL conversion routes
- Details
-
Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, FilterOutboundURL resolves the hostname, checks the resolved IPs against the private-address deny-list, and returns only the error. It discards the resolved addresses. Chromium later performs its own DNS resolution when it navigates to the URL. An attacker who controls DNS for a hostname with a short TTL returns a public IP on the first query (Gotenberg allows) and a private IP on the second query (Chromium connects to the attacker-chosen internal address). The CDP Fetch.requestPaused handler re-checks the URL but runs its own DNS resolution, leaving a timing window before Chromium's actual TCP connect. The rendered internal service response returns to the caller as a PDF. This vulnerability is fixed in 8.32.0.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42592.json", "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-367", "CWE-918" ] }- References
Affected packages
Git / github.com/gotenberg/gotenberg
Affected ranges
- Type
- GIT
- Repo
- https://github.com/gotenberg/gotenberg
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
{ "source": [ "AFFECTED_FIELD", "CPE_RANGE" ], "cpe": "cpe:2.3:a:thecodingmachine:gotenberg:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "0" }, { "fixed": "8.32.0" } ] }